The structure of the corrugated pipe pneumatic valve characteristics and industry standards

corrugated pipe pneumatic valve through a series of strict inspection and testing procedures. Including % to gas seal and no leakage test. There is a requirement for vacuum degree of corrugated pipe, can be true by the helium mass spectrometer leak detector air tightness test.
the structure characteristics of the corrugated pipe pneumatic valve:
. Pneumatic valve connected to the pneumatic valve cover with the double end studs, simple structure, process performance is good.
. This pneumatic valve pneumatic valve stem is not only a general pneumatic valve stuffing box, and in the bottom of the packing box, in the pneumatic valve cavity upper sealing element - containing activities Stainless steel bellows, medium sealed in pneumatic valve rod pneumatic valve cavity, can't enter the stuffing box, therefore this pneumatic valve is generally more reliable pneumatic valve to prevent leakage, ensure pneumatic valve rod connected to the pneumatic valve bonnet seal.
. Pneumatic valve stem nut using surface nitriding, improve surface hardness and wear resistance, prevent galling.
. Flange bolts used in high strength alloy steel, high temperature creep resistance is good, safe and reliable.
. Corrugated pipe in pneumatic valve bonnet cavity design, avoid direct flush with the media, to improve the service life of bellows.
. Bellows used ~ times overlap, for single-layer bellows against breakage and make the pneumatic valve leaking, prolong the service life of pneumatic valve.
. Longer because of the corrugated pipe design, open height is big, reduce the fluid resistance, small flow resistance coefficient.
. The packing and double seal bellows, achieve zero leakage.
corrugated pipe of pneumatic valve design and manufacturing and acceptance standard design and manufacture according to GB/T, DIN, DIN, ASMEB. API,海量存储系统(MSS)中, SP- 。
inspection and testing in accordance with the API, JB/T, DIN.
tag according to MSS - SP- 。